Can-opener



0. L. WALLIN'G.

.CAN OPENER. APPLICATION FILED SEPT522, I920.

Patented May 311, 1921.

, reverses.

I OSCAR I1. WALLING, F DENVER, COLORADO.

CAN-OPENER.

Specification of Letters Patent. Patgnted MM 31 1921 3 Application filed September 22, 1920. Serial No. 411,929.

T 0 all whom it may. concern:

Be it known that I OSCAR L. WALLING, a

' citizen of the United tates, residing at Denver, in the county of Denver andVState of Colorado, have invented certain new and useful Improvements in Can-Openers, of which the follOWiIlg is a specification.

This invention relates to can openers and particularly to an attachment to be mounted on a conventional form of can having a removable cover whereby the attachment may be manually actuated to cause easy release of the cover from the container.

Other objects of the invention will appear upon consideration of the following detail description and accompanying drawings, wherein Figure 1 is a side elevation of the box with the attachment mounted thereon,

Fig. 2 is a detail perspective view of the opener member,

Fig. 3 is a plan of the blank from which the guide member is formed,

Fig. 4 is a perspective view of the guide member ready to be secured to the con tainer.

Referring to the drawing by numerals, the container 1 is provided with a removable cover and an annular flange 3" but it is pointed out that the invention is adapted to be applied to any type of can or container having a removable cover. In the present instance the guide member 4: comprises parallel side plates 5 closed at one edge whereby a channel 6 is formed between the plates. A sleeve 7 is formed at one end of the guide member and has an end opening 8 which extends through the sleeve and communicates with the interior of the channel. The guide member is adapted to be secured in position by tabs 9 which may be soldered or otherwise rigidly fixed to the cover 2 or container 1 according to which member has the flange 3 formed thereon. When the flange is formed on the cover, the device will be secured to the box and when the flange is provided on the box or container as in the present instance, the guide member will be secured to the cover. The guide member is secured so that the free marginal edges of the plates 5 are parallel with the flange 3 and a slight space intervenes between the open edge of the channel 6 and the flange when the cover is closed.

The opener member 10 comprises a straight shank 11 and a blade 12 having a curved edge 13 forming a cam. A rolled end of the shank forms a finger grip 14. In operat1on the shank 11 will be extended through the sleeve 7 so that the curved edge of the cam will be in contact with the flange 3 on the container. Since the closed edge of the channel 1s .angularly disposed with respect to the annular flange 3 it will be obvious that an inward pressure of the opener member Wlll cause the cam to force the flange away from the cover so that the cover and con- :Zainer will be separated, thus opening the In Fig. 3 I have illustrated a blank from which the device may be constructed when the guide member is formed of a single piece of metal. The blank is folded on the central portion indicated by the dotted hue and the extension tongue 15 may be folded over the portion 16 so as to complete the formation of the sleeve 7 as clearly illustrated in Fig. 4. The portions 17 and 18 are intended to form the tabs 9 whereby the guide membermay be securedto the container. It is pointed out however that the parts may be constructed and made in any other manner to properly form the guide whereby the cam member will have an angular path of movement as it is forced into engagement with the annular flange.

What I claim is 1. In combination with a container having an annular flange and a removable cover, a guide member provided with a channel having an open edge and a closed edge, an opener member comprising a shank extending into the guide member and provided with a cam having its curved edge projecting through the open edge of the channel for engagement with the said annular flange and a finger press to facilitate manual pressure of the cam through the guide member.

2. In combination with a container having a removable cover and provided with an annular flange, of a guide member secured to the container, the same including a chan nel having a closed side and an open side, the latter being in proximity to the annular flange, a cam member having a shank, a sleeve formed on the guide member to receive the shank whereby the cam may be disposed within the channel the curved edge of the cam extending through the open side of the channel for engagement with the annular flange, and a finger press formed on the a removable cover and provided with an annular flange, of a guide member secured v to the container, the same including a channel having a closed side and an open side, the latter being in proximity to the annular flange, a cam member having a shank, a sleeve formed on the guide member to receive the shank whereby the cam may be disposed within the channel the curved edge of the cam extending through the open side of the channel for engagement with the annular flange, and a finger press formed on the shank whereby the latter may be 1 a V r Witnesses:

thrust. through the sleeve'to move the cam along the annular flange, the guide member being secured to the container whereby the closed side of the channel will be disposed at an angle with respect to the said annular flange on the container to cause a downward movement of the cam member through the guide when the shank is thrust inwardly through the sleeve. ,7 V

4:. In combination with a container having an annular flange and a removable cover, a guide member provided with a channel having a closed edge and an open edge, and an opener member slidable in the channel adapted to engage the annular flange when* thrust inwardly.

In testimony whereof I have aliixed my signature in the presence of two witnesses.

OSCAR L. WALLING.

FINLEY R. Hoes'rEN, ALBERT J. SEAMAN. 

